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30.6=-5.1n
We move all terms to the left:
30.6-(-5.1n)=0
We get rid of parentheses
5.1n+30.6=0
We move all terms containing n to the left, all other terms to the right
5.1n=-30.6
n=-30.6/5.1
n=-6+3.5527136788005E-15/5.1
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